6
fatuous
5
slow(adjective, stupid)
3
slow-witted(adjective, stupid, sharp-sighted)
3
stupid
3
uneducated(adjective, stupid)
2
brainless
2
dopey
2
idiotic(adjective, stupid)
2
obtuse
2
thickheaded
2
unintelligent(adjective, stupid)
1
airheaded
1
asinine
1
birdbrained
1
boneheaded
1
brain-dead
1
bubbleheaded
1
chuckleheaded
1
dense
1
dim
<123457>
10 years ago|1.3k views|share |citing 
APASmart Define. (2016). quick-witted thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/quick-witted/thesaurus/antonyms
ChicagoSmart Define. 2016. "quick-witted thesaurus" https://smartdefine.org/quick-witted/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, quick-witted thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/quick-witted/thesaurus/antonyms>.
MLASmart Define. "quick-witted thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/quick-witted/thesaurus/antonyms>